Python Forum

Please how can I retrieve on p-values from this

results = results.test_causality('Q50', ['Q95'], kind='f')
print results

# output:

Output:
<statsmodels.tsa.vector_ar.hypothesis_test_results.CausalityTestResults object.  
H_0: Q95 does not Granger-cause Q50: fail to reject at 5% significance level.  
Test statistic: 0.200, critical value: 3.851>, p-value: 0.655>

How can I copy only the p value?

Try results.pvalue

I tried but doesnt work

Never used statsmodels myself but from documentation:

test_causality returns CausalityTestResults object.

CausalityTestResults has method summary()

Staph Wrote:I tried but doesnt work

What's the error message?